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USGS Water-Year Summary 2024
11109800 Piru Creek below Santa Felicia Dam, CA
LOCATION - Lat 34°27'37", long 118°45'04" referenced to North American Datum of 1927, Ventura County, CA, Hydrologic Unit 18070102,
in Temescal Grant, on right bank, 750 ft downstream from Santa Felicia Dam, 1 mi upstream from Lime Canyon, 4 mi northeast of Piru, and 20 mi downstream from Pyramid Dam.
DRAINAGE AREA - 425 mi².
REVISIONS HISTORY - WSP 1928: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1955 to September 1968, October 1973 to current year.
CHEMICAL DATA: Water years 1969, 1974-80.
SPECIFIC CONDUCTANCE: Water years 1974-80.
WATER TEMPERATURE: Water year 1969.
GAGE - Water-stage recorder and concrete control. Discharge values measured directly from Tiger Mag Meters and Accusonic flow measurement system below the dam starting October 2013. Datum of gage is 861.34 ft above NAVD of 1988.
REMARKS - Records collected in connection with Federal Energy Regulatory Commission (FERC) project no. 2153. Since May 1955, flow regulated by Lake Piru (station 11109700), and since 1971, by Pyramid Lake (station 11109520). Imported water from the California Water Project stored by Pyramid Lake. Spill from Lake Piru bypasses gage. See schematic diagram of Santa Clara River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 920 ft³/s, Sept. 6, 2000, gage height, 4.47 ft, maximum gage height, 6.30 ft, Mar. 7, 2005; no flow at times in some years.
